Mixer or vaporizer for hydrocarbon-engines.



'No. 697,555. Patented Apr. I5, 1902.

B. ssnznansu. r

MIXEROB'VAPORIZEB FOR HYDBOCARBON ENGINES.

. (Application fl1ed In. 18. 1901.) (No Model.) I 1 Wimms.

sectional elevation of the apparatus.

UNITED STATES PATENT OFFICE;

BERNHARD SETTERGREN, OF CHICAGO, ILLINOIS.

MIXER OR VAPORIZER FOR HYDROCARBON-ENGINES.

SPECIFICATION forming; part of Letters Patent No. 697,555, dated April15, 1902. Application filed March 18, 1901. Serial No. 61,671. (Nomodel.)

To all whom it may concern:

Be it known that I, BERNHARD SETTERGREN, a citizen of the United States,residing at Ohicago, in the county of Cook and State of Illi nois, haveinvented certain new and useful Improvements in Mixers or Vaporizers forHydrocarbon-Engines; and I do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to the figures ofreference marked thereon ,which form a part of this specification.

This invention relates to improvements in gasolene or explosion engines,and is designed to provide a mixer orvaporizer for such engines. Itparticularly comprises means for positively delivering a certain chargeof oil 'or fluid to the vaporizer under all conditions.

Particularly in the use for marine purposes of gasolene or otherhydrocarbon engines having a drip or gravity feed it has been found thatthe movement of the engine due to the rocking of the boat causes thefeed to vary or fail, injuriously affecting the operation of the engine.My invention is adapted to give an invariable feed to such engines bythe use of a pump, supplying definite and successive charges of oil tothe mixing or vaporizing chamber, according to the stroke of the engine,and also comprises means for adjusting or regulating the amount of thecharge so dolivered.

Referring to the drawings, Figure l is a Fig. 2 is a section on line 2 2of Fig. 1, and-Fig. 3 is a sectional plan on line 3 3 of Fig. 1.

A mixing or vaporizing chamber 4 is connected to the air-inlet pipe orpassage 5 and to the delivery pipe or passage 6, leading to the cylinderof the engine. Attachedto the chamber, working at substantially a rightangle to the direction of the flow of air through the chamber, is agasolene or oil pump, consisting of a cylindrical pump-casing 7, theupper end of which enters and is connected to the mixing-chamber, and ahollow cylindrical plunger 8, working within the casing and beyond thesame within and across the mixing-chamber. The pump-plunger has aninterior longitudinal oil chamber or passage 8, communicating throughthe inlet ballvalve 9 in its lower end with the oil-supply pipe 18,leading from the reservoir, and the overflow-pipe 20, leading to thereservoir, and the said chamber is provided with a port 10 in the sideof the plunger. Through this port in the operation of the pump the oilis discharged into the mixing-chamber. This port is so situated that itis closed during a part of the stroke of the plunger by passing belowthe edge 7 of the pump-casing. There may be several of these portspreferably located in the same circumferential line. The oilchamber 8 isclosed at its upper end by a screw-cap 13, which is tapped axially tore- 7 ceive a screw-threaded adjusting rod or stem 11, which has fixedto its lower end within and fitting the oil-chamber a head 12, whichacts as a valve to adjustably open or close the port. The upper or outerend of the rod or stem is provided with a thumb-nut 16, held byabinding-nut 17, whereby the rod and head may be actuated to open orclose the port wholly or partly and govern the delivery of oil. Thebinding-nut is adapted to hold the rod when set as desired.

Motion is given to the pump-plunger by any suitable or convenient means.In the drawings is shown a laterally-extending arm 14, attached to therod of the pump-plunger by being. tightly fitted over a nut 14 on therod and secured by the binding-nut 15 and adapted to operate the plungerby connection with an eccentric on the engine-shaft or by any othersuitable means.

A check-valve 19 in the supply-pipe l8 and a check-valve 21 in theoverflow-pipe 20 open to and from the pump, respectively. The weight orresistance of the valve 21 is greater than that of the valve 9.

In operation the valve 9 closes and the valve i 19 opens at the upwardstroke of the pumpplunger, and oil is drawn from the oil-reservoirthrough the pipe 18 into the pump-casing, and the port 10 passes abovethe casing and opens into the mixing-chamber 4. The downward stroke ofthe plunger closes the valve 19 and opens the valve 9, (of lessresistance than the valve 21,) and the oil contained within the plungerand casing is discharged through the port into the mixingchamber, whereit vaporizes and mixes with the air entering the air-pipe 5, and themixture is drawn through the pipe 6 by the suction of the engine intothe cylinder. The connection between the pump and the engine is suchthat the inspiration of the engine is synchronous with that period ofthe downward stroke of the plunger during which the port is above thepump-casing. When the port passes below the edge of the pump-casing, thedelivery of oil is stopped and the valve 21 opens under the pressure,permitting the discharge through the overflow-pipe of the excess of oilin the pump-casing.

It will be seen that at each stroke of the pump oil is positivelydelivered under pressure, assisted by the suction of the engine, andthat vibration or rocking of the engine does not afiect the operation orsupply. Furthermore, the size of the port opening into themixing-chamber can be adjusted to regulate the amount of oil delivered.

Having thus described myinvention, what I claim as new, and desire tosecure by Letters Patent, is-

1. Amixerorvaporizer forhydrocarbon-engines consisting of a chamberthrough which the air passes on its way to the cylinder, a pump-casingopening into the chamber, a hollow plunger working in the chamberandcasing, an oil-inlet valve in that part of the plunger within thecasing, and a discharge-port in the plunger adapted to open into thechamber during a portion of the stroke of the plunger and to be closedduring the remainder of the stroke by passing within the casing.

2. A means of supplying oil to hydrocarbonengines consisting of apump-casing, supply and overflow pipes connected thereto, valves in saidpipes, a plunger in the casing, a chamber in the plunger, said chamberhaving an inlet-valve opening under less pressure than the valve of theoverflow-pipe and a dischargeport closed by the casing during a portionof the stroke.

3. A mixer or vaporizer for hydrocarbon-engines consisting of amixing-chamber in the air-passage leading to the cylinder, a pumpcasingopening into the mixing-chamber, a chambered plunger working within thecasing and the mixing-chamber, an oil-inlet valve in the plunger, anoil-discharge portin the plunger adapted to alternately open and closeby passing without and Within the casing, and means to regulate theamount of oil discharged through said port.

4. Amixer or vaporizer forhydrocarbon-em gines, consisting of amixing-chamber,a pump adjacent thereto having a plunger working partlywithin the chamber, an oil-passage in the plunger having a port openinginto the chamber, a sliding block in the passage to regulate the size ofthe port, and means to adjust the block.

In testimony whereof I affix my signature in presence of two witnesses.

BERNHARD SETTERGREN.

Witnesses:

GEORGE E. TEW, E. M. STALEY.

